Firestop collar means with improved mounting means

摘要

The present invention provides a firestop collar with an improved apparatus and method for mounting thereof with respect to a annular cavity formed in a wall or floor around a pipe or other cylindrical member protruding therethrough. The collar member preferably is positioned adjacent to the surface surrounding the protruding member and contains preferably intumescent material therein which is responsive to heat in order to expand and fill the aperture extending through the wall or panel during heat, fire or smoke conditions. The anchoring device for the present invention is adapted to hold the collar in abutment with the structural wall in position surrounding the penetrating conduit and it includes two leg members and an arcuate member. The arcuate member extends between the leg members and is made of a flexibly resilient material and has a radius of curvature less than that of the protruding conduit. The arcuate member can be flexed to cause the arcuate member to assume the same radius of curvature as the annular cavity such that it can extend therethrough such that the arcuate member is movable to the opposite side of the structural member with the two leg members secured at opposite ends of the arcuate member extending outwardly to the first side of the structural member through the cavity. These legs can then be secured to a collar member and with the arcuate member engaging the second surface of the structural member the firestop collar member is held in place securely.